PDCLIB-2: Pure wide character functions

[pdclib.old] / functions / wchar / wmemchr.c

diff --git a/functions/wchar/wmemchr.c b/functions/wchar/wmemchr.c
new file mode 100644 (file)
index 0000000..181da15
--- /dev/null
+++ b/functions/wchar/wmemchr.c
@@ -0,0 +1,39 @@
+/* wmemchr( const void *, int, size_t )\r
+\r
+   This file is part of the Public Domain C Library (PDCLib).\r
+   Permission is granted to use, modify, and / or redistribute at will.\r
+*/\r
+\r
+#include <wchar.h>\r
+\r
+#ifndef REGTEST\r
+\r
+wchar_t * wmemchr( const wchar_t * p, wchar_t c, size_t n )\r
+{\r
+    while ( n-- )\r
+    {\r
+        if ( *p == c )\r
+        {\r
+            return (wchar_t*) p;\r
+        }\r
+        ++p;\r
+    }\r
+    return NULL;\r
+}\r
+\r
+#endif\r
+\r
+#ifdef TEST\r
+#include <_PDCLIB_test.h>\r
+\r
+int main( void )\r
+{\r
+    TESTCASE( wmemchr( wabcde, L'c', 5 ) == &wabcde[2] );\r
+    TESTCASE( wmemchr( wabcde, L'a', 1 ) == &wabcde[0] );\r
+    TESTCASE( wmemchr( wabcde, L'a', 0 ) == NULL );\r
+    TESTCASE( wmemchr( wabcde, L'\0', 5 ) == NULL );\r
+    TESTCASE( wmemchr( wabcde, L'\0', 6 ) == &wabcde[5] );\r
+    return TEST_RESULTS;\r
+}\r
+\r
+#endif\r